import {
  reqCartList,
  reqDeleteCartById,
  reqUdateCheckedByid
} from "@/api"
const state = {
  cartList: []
}
const mutations = {
  GETCARTLIST(state, cartList) {
    state.cartList = cartList
  }
}
const actions = {
  // 获取购物车列表数据
  async getCartList({
    commit
  }) {
    let result = await reqCartList()
    // 测试能够获取个人购物车的数据
    console.log(result)
    if (result.code === 200) {
      commit('GETCARTLIST', result.data)
    }
  },
  // 删除购物车某一个产品
  async deleteCartListBySkuId({
    commit
  }, skuId) {
    let result = await reqDeleteCartById(skuId)
    if (result.code === 200) {
      return 'ok'
    } else {
      return Promise.reject(new Error('faile'))
    }
  },
  // 修改购物车某一个产品的选中状态
  async updateCheckedById({
    commit
  }, {
    skuId,
    isChecked
  }) {
    let result = await reqUdateCheckedByid(skuId, isChecked)
    if (result.code === 200) {
      return 'ok'
    } else {
      return Promise.reject(new Error('faile'))
    }
  },
  // 删除全部勾选的产品 
  deleteAllCheckedCart({
    dispatch,
    getters
  }) {
    // context：小仓库 , commit【提交mutations修改state】 getters【计算属性】 dispatch【派发 actions】 state【当前仓库数据】
    let PromiseAll = []
    console.log(getters)
    getters.cartList.cartInfoList.forEach(item => {
      let promise =  item.isChecked == 1 ? dispatch('deleteCartListBySkuId', item.skuId) : ''
      // 将每一次返回的Promise添加到数组当中
      PromiseAll.push(promise)
    });
    // 
    return Promise.all(PromiseAll)
  },
  // 修改全部产品状态
  updateAllCartCheckedCart({dispatch,state},isChecked){
    console.log(state,isChecked)
    let promiseAll = []
    state.cartList[0].cartInfoList.forEach(item=>{
      let promise = dispatch('updateCheckedById',{
        skuId:item.skuId,
        isChecked
      })
      promiseAll.push(promise)
    })
    // 最终返回结果
    return Promise.all(promiseAll)
  }
}
const getters = {
  cartList(state) {
    return state.cartList[0] || {}
  }
}
export default {
  state,
  mutations,
  actions,
  getters
}